Souta was born in Soka but has worked and lived in Tokyo until recently. He's engaged to Miki and decides to return to Soka to look for a new home where the two will live together. While house hunting, he encounters a mysterious bird and begins to chase after it. He then meets a woman named Akiko who time-slipped to the future. Souta shows her around the city and she reflects on how much has changed and her future as she too is engaged.
